Finding the Third Proportional to 2,149,684 and 4,692,320

Step by Step Solution

1. Step 1: Write the proportion equation
   2,149,684 : 4,692,320 = 4,692,320 : x
2. Step 2: Convert to fraction form
   2,149,684/4,692,320 = 4,692,320/x
3. Step 3: Cross multiply
   2,149,684x = 4,692,320 × 4,692,320
4. Step 4: Simplify right side
   2,149,684x = 22,017,866,982,400
5. Step 5: Solve for x
   x = 22,017,866,982,400/2,149,684
6. Step 6: Final answer
   x = 10,242,373.75